Paper-finishing machine



w. F". McCARTHY.

PAPERHNISHI NG MACHINE. APPLICATION HLED FEB. Z, 1921.

1,428,852, Patented Sept. 12, 1922.

I N VEN TOR.

UNITED STATES Patented SepttlZ, 192 2.

PAT T, Mme

WILLIAM F. cMeCARTHYQ or; srRInGrrELi), MASSACHUSETTS.

PAPER-Ernestine MACHINE; f

Applicationg filed February ,7; 1921. Serial No. 443,20 7 f To all whomit mayconoem: I v I Be itrknown thatWILnI M F. MCCARTHY," a citizen-ofthe United Statearesiding at Springfield, inthe county of Hampden and- Iconnection with the manufacturecit fine v quality papers, and moreparticularly to devices for preventing buckling eitects, wrlnkles andother unevenness of finish takingplace on the finished surfacesot'suchpaper while being put through the finishing processes, and incidentallyeliminating broke. l v

, Some of the objects of this invention include the' following featuresTo provide "a device for controlling the V supply of stock or materialin process, in

such a way as to cause -'it to be introduced into the finishingcalender-s in a manner best suited l or the finishing process and a thefinished surfaces of the-product;

To provide such a device that Will be capable of close adjustment bothin regard. I II I II I I I I 'bringabout a 'conchftrori for wrinklingvery to positioning in several planes and in regulating the tension of.the device.

To have same readily installable onany general type of calender andadapted for cleaning and facility in inspection testing,

removing or repair.

' other objects which will becomeappar'ent as I I I I I I 'similarpartsthroughoutj-the drawings;

Jot all theexperiencegand research noted,-

To have the device so arranged that one 7 unit will be suflicient for asingle calender. To have the device suitable for insta l.la-' tion onpresent machinery and mechan sm' used in connection with the present'manutacture 'ofpaper. I II To have a device that Wlll g ve :a'moreuniform grade of'finishedpaper and one 'that will automatically asitwere, remove the general conditions that bring about wrinkles,bucklingand other serious surface defects, under ordinary cond.1tions,'a nd manythe invention is more fully 'set forth.

The paper industry is one of a highly developed nature, and onewhich hasreceived and is receiving the highest degree of technical and practical"research. 1n spite I certain difficulties have been experienced whichhave rendered that portion ofthe art of paper-making known as cffinishing Yo'f a i of broke.

higher gradepapers, a matters 0f continual uncertainty, because ofthedfre'quent'finishing of the paperfinv an unsuitable commercialcondition, requiring a 'discard' ofv the material com ng through andaccumulation The matter of broke is serious c because when the papercomes through detectively, radical methods'havetobe introduced to reduceit, in view of the fact that the machine cannot practically,be stopped.

The paperis torn roughly and in doing'so, 'reintroducedinto thecalenders, where it may repeat andrepea't the condition of the disturbedfinish. With paper being manufactured'in a large paper mill at a jhig'hrate of speed, such a condition in the finishing calenders can quicklyaccumulate an enor- 'mous amount'of spoiled paper, and consequent lossto all concerned.

This invention serves to prevent this cond tlon, by providing that thepaper enterwill assist the stock and at'the same time cooperate with thec'alenders. There is a t'ain sags and uneven'itensions arise, thatreadily in the calenders and "is the main cause of the diflicultiesheretoforementionedl I This inventionprovjides for the bridging'of thefspace and the proper guiding of "the material to the 'calenders, andprovides a 1neans for insuring proper tightnessifand uniform mobility inentering the: finishing I,

rolls. in c In the drawings,'which show byway of pap r-Z a c F1gure2 1sa side view indlcatlng n genmet-1, represents an upper finishingrolland2 the lower roll; of the set these rolls eral theprinciples andoperation of the device. i I

ing the calenders does so in a manner that or calen dersbeing spacedapart just jsufii fcien't to. permit. the paper sto'cktofpass throughand finished on I their; surfaces by the calenders, as noted by. thespace 3; c

A ca-rrier 4 is in generalproximity to 7, and 8.

the calenders and is provided with rolls 5, Over these rolls run a feltcarrier 9, and on this the paper stock 10, flows towards the calenders.I

' The parts just mentioned are indicated in dotted lines in Figure 1 soas not to obstruct the view and position of the device to be described.The arrows in this view indicate the material being processedner, is abracket or holder 11. This bracket journals a shaft 12, and set screw13. sets the shaft inthe ournal. The shaft extends across under thecarrier belt and is support- I ed in a like manner at its other end.

A plurality of fastening screws 14 are arranged acrosstheshaft and serveto -in sert in the slots 15 provided in a plate or apron 1 6 and holdthe same rigidly to the shaft. The apronextends under the roll in thedrawings.

.7 and is conformed to come close to it as show-n at17, in a quadrantialcurve that embraces the lower roll.' At this point the apron is extendedout horizontally towards the tangential or proximate meeting point ofthe calenders 1 and 2 andstops close thereto, allowing sufficient spaceto not in .terfere with the full introduction of the paper stock goingthrough the calenders.

The apron, curve and plate are preferably of one plece andrelatlvelythin so' as to give a general resiliency to the device without taking.away from its functional ability/ Mounted adjustably onthe end portionsof the shaft 12: are the arms 18. These arms are made preferably of theoutline indicated The fastening screws 19 secure the arms in "place andthe slots 20 in which. they stand enable sidewise movement to be made.The plate ends of the arms are formed inwardly as shown at121 andsupport the edge portions of the plate.

fThe operation of the device is as follows :"-The device is positionedas indicated in the drawings and the machines started into their variousprocesses. As the stock comes down the carrier 3 it flows. on to thefeeding plate and then is guided into the .a smooth and flat manner.

or by calenders and is finished. The plate is preferably at a slightslant pointing towards the space 3. As the stock flows along it becomestightened and the paper given a uniform stretch. The plate being'acrossthe fullwidth ,of the calender keeps the whole width uniformly andpositively feeding in The plate is positively straight either by its ownstrength the reenforcing action of the arms. The adjustable screws 14:enable the plate to be pushed forward or backward as the stock mayrequire, and to be tightened when the device is properly set. I

Adjustment in a radial way of the plate may be made turning the wholeshaft 12 in Suitably secured to the framework of the machinery or in anyother preferable manthe journals and setting the rotatably actingset-screws 18 firmly in place. Thus the device meets every generalrequirement of adj ustability either to the paper stock or the machineryconnected therewith in the, finishingf i I While but one form of thisinvention is shown in the drawings, it is not desired to limit theinvention to that particular form or in any other way, otherwise thanlimited by theprior art, as'many constructions can be made of thisinvention that will embody its principles and come within the-scope ofthe appended claims.

having thus described the inventlon, what is claimed is 1. A. finishfeeder in combination with a set of calenders, a flat plate extendingthe 7 length of one of the calender rolls having its feeding edgebroughtadjacent to the finishing point of the calenders against theroll, and means for adjustably holding the plate in position, andwherebythe rough. stock" will be received thereby and slid thereon,ironed and fed from the plate to the calenders.

2. A finish feeder in combination with oalenders and stock flowingthrough the same comprising a feeding plate, a resilient apronsupporting the same and means for adjusting the apron to bring theplateadjacent to the finishing point of the cal enders. I

8. A. finish feeder in combination wlth calenders' a feed ng platehaving a curve portion in rear of the plate and anapron secured to thecurved portion, and means for rotating and adjusting the plate.

,4. A finish feeder comprising a plate I adapted to'receive a relativelylarge layof flowing rough stock, an apron attached th reto having aplurality of adjusting points in the rear thereof, a bar supporting theapron at the adjusting points, fastening means 1n the bar arranged forinsertion in the adjusting points "of the apron, .and'means forrotatably raising. and lowering the plate on the bar forholding'the 7same. I e 5. A finish feedercomprisinga fiat plate, an apron attachedthereto inthe rear thereof and arranged tolresiliently support theplate, a bar, means for adjustablymounting in a forward and rearwardmanner the apron onthe' bar, means for adjusting the bar rotatably andsupporting means for the last mentioned means.

6. A finish plate comprising. a plate for 7 A finish plate feeder incombination with a set of calenders and stock carrier,

a plate adapted to fit closely between the carrier and the finishingpoint of the calenders and provided with a rear apron formed to conformwith the contour of the feed roll of the carrier and fit closely theretoand carry the rough stock to the finishing point of the calenders in asmooth and uniform manner, the rear portion thereof being arranged forsecuring to the framework of the carrier or calenders.

8. A finish feeder comprising in combination with a calender machine andcarrier adjacent thereto, a feeding plate having a stock receivingsurface formed between the carrier and the calender machine, whereby therough stock from the carrier may be continuously flowed or carriedbetween the carrier and the finishing point of the calender machinewithout appreciably allowing the stock to be stressed by its own weight,and means for holding the plate close to the carrier and the upper rollof the calender machine at its finishing line.

9. A device of the class described comprising a plate having a front andrear portion, the front portion being adapted to point to the contactline of the calender rolls and come adjacent thereto, and the rearportion to embrace a carrier for the calender rolls and to extend as anapron therefrom, and a bar supporting the apron portion, and meansconnected with the bar for adjustably pressing the front portion againstthe stock as it flows into the calender rolls.

10. A finish feeder for calender machines comprising in combination, afiat feeding plate having its feeding edge at the finishing line of thecalender machine, means for adjusting the feeding edge with relation tothe finishing line, a cylindrical sleeve holding the plate, a system ofjournals for holding the sleeve, adjusting screws in the sleeve forrotating the sleeve and causing the plate to press against the uppercalender roll of the machines, said set screws being weighted to cause arotative action in the journal, and means holding the plate in closeproximity against the parts of the calender machine whereby the stockwill be supported continuously between the carrier and the finishingpoint or line of the rolls thereof.

11. A device of the class described in combination with a stock carrierand a finishing machine, a plate having a plurality of portions, one ofsaid portions being arranged to carry and guide the stock against thecalenderrolls, another portion to embrace the carrier contour and takethe stock therefrom, and an intermediate portion adapted to carry andguide the stock from the last mentioned portion to the first, and meansfor keeping the plate in pressing contact with the stock so as to, carryand iron it as it passes from the carrier to the finishing machine, andmeans for adjustably supporting the last mentioned means.

12. A device of the class described comprising a plate having a lip,along the edge of its front portion, said plate being relativelystraight, an apexed portion rising up from the rear-thereof, and acurved portion extending rearwards from the apexed portion, and an apronextending from the curved portion said apron having a plurality of slotstherein, a bar for supporting the apron and having means thereinengaging in the slots thereof, and threaded means connected with the barfor giving a rotative adjustability to the bar and the portions of theplate attached therewith, and whereby a pressure may be adjustablytransmitted to the lip, and means for supporting all the mentioned meanssecurely with a finishing machine.

In testimony whereof I hereunto afiix my signature in the presence oftwo witnesses.

WILLIAM F. MoOARTHY.

Witnesses:

A. r. CONNOR, ADRIAN KRAMER.

